Home / 19,159.76-28,736.38-5,305.52

Finding the Fourth Proportional to 19,159.76, 28,736.38 and 5,305.52

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Solution

The fourth proportional to 19,159.76, 28,736.38 and 5,305.52 is: 7,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.76 : 28,736.38 = 5,305.52 : x
  2. Step 2: Convert to fraction form
    19,159.76/28,736.38 = 5,305.52/x
  3. Step 3: Cross multiply
    19,159.76x = 28,736.38 × 5,305.52
  4. Step 4: Simplify right side
    19,159.76x = 152,461,438.82
  5. Step 5: Solve for x
    x = 152,461,438.82/19,159.76
  6. Step 6: Final answer
    x = 7,957.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.